In this assessment, a total of 295 watershed units were studied.
Our data compilation and analysis resulted in the ability to assess natural resource condition over two national park units by summarizing chemical, biologic, and landscape indicators within watershed units in a DSS context, even where data were incomplete.
For the watershed units, the exclusion of the poultry density variable led to larger and significant coefficients for the ruminant density variable (from 16.0 [p=0.22] to 23.1 [p=0.08] for ruminant density >20 per km2 and from 8.9 [p=0.12] to 15.9 [p<0.01] for ruminant density ≤250 per km).
In a watershed, basic unit is stream network which reveals structural, geological and hydrological setup of the watershed.
Drainage density refers to the length of streams within a watershed per unit area (Horton 1932), and among the watersheds of the study area it ranges from 1.90 (Pulambadi watershed) to 3.40 km/sq.
This research has now given users the option of either running the executable file alone to process a single watershed reporting unit or running a supporting AML shell program that calls upon the executable file as necessary to perform automated processing for a user-specified number of watersheds.
Beginning at the lower end of Bull Run Lake in the Cascade Range, it flows generally west through the Bull Run Watershed Management Unit (BRWMU), a restricted area meant to protect the river and its tributaries from contamination.
Each variable was summarized at the scale of a small watershed (Hydrologic Unit Code-12; mean size = 9,570 ha; n = 4,621), and then stratified and summarized to 10 regions of relative homogeneity in terms of hydrologic, ecologic and climatic conditions.
To strengthen the soil and water conservation and protection of the ecological environment, comprehensive mitigation planning is necessary with considerations that include balancing the safety, ecology, and landscape, and treating the whole watershed as a unit.
